package com.yxym.homework;

public class Homework01 {
    public static void main(String[] args) {
        try {
            //验证输入的参数个数是否正确，两个参数
            if(args.length != 2){
                throw new ArrayIndexOutOfBoundsException("参数个数不对...");
            }
            //先把接收到的参数，转成整数
            int n1 = Integer.parseInt(args[0]);
            int n2 = Integer.parseInt(args[1]);
            double res = cal(n1,n2);
            System.out.println("计算结果=" + res);
        } catch (ArrayIndexOutOfBoundsException e) {
            System.out.println(e.getMessage());
        }catch (NumberFormatException e){
            System.out.println("参数格式不正确，需要输出整数...");
        }catch (ArithmeticException e){
            System.out.println("出现了除以0的异常...");
        }
    }//编写cal方法，就是两个数的商
    public static double cal(int n1, int n2){
        return n1 /n2;
    }
}